Fear is inherent in any civilized populace. The reason people do not simply do whatever they want is fear of the consequences of your own actions. American society, as an example, adheres to the aforementioned model. Americans by and large do not commit mass genocide or start private wars, even though they have access to guns. While there may be multiple reasons as to why this is the case, one could reason that the fear instilled in the consequences of the law in some states (the death penalty, gunned down by police, life imprisonment), for even one murder is enough incentive to cause a reasonable individual to think about the consequences of their actions.

My opinion on this matter is that, at least in American society, there is no need for a leader to lead by fear, because Americans are already subject to some accepted fear, keeping them in control.

I think a mixture of the two would be best. one can't rule a country that doesn't want to be ruled, and nobody wants to live in terror, however in certain situations terroristic traits would fare better

Those leaders clearly did not instill a sufficient amount of fear in their subjects

In other words.....

And what happened to him? He fucking died due to my reasoning.

I’ve been taught that John F. Kennedy was one of the loved and respected American presidents and look at what happened to him.

Do you believe swearing lends credibility to your case? Or is it hyperbole?

Kennedy was loved by the people, ... but he was against the war in vietnam... but war means money... never stand in the way of the money.

I got this from a website about Kennedy & Vietnam:

"John Fitzgerald Kennedy was a fervent believer in containing communism. In his first speech on becoming president, Kennedy made it clear that he would continue the policy of the former President, Dwight Eisenhower, and support the government of Diem in South Vietnam. Kennedy also made it plain that he supported the ‘Domino Theory’ and he was convinced that if South Vietnam fell to communism, then other states in the region would as a consequence. This Kennedy was not prepared to contemplate."